Oil pump
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,670
The stock pump puts out plenty of pressure, unless you've installed oil squirters. I've run the Hi-Volume Melling pump for many years. A high volume pump will run same pressure as stock. If you are tracking the car, and the motor starts starving for oil, for whatever reason, a HV pump recovers the pressure quicker. It pumps no more volume than stock, with stock bearing clearances. It's a myth that a Hi-Volume pump pumps the pan dry of oil. It can't pump any more volume than stock, unless you've opened up bearing clearances for racing purposes. Then you may need a larger sump capacity. A high pressure pump WILL pump more oil, because with more pressure comes more oil seeping past the same clearances.....
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,670
Thread Starter
Pro
Joined: Dec 2017
Posts: 572
Likes: 28
From: Volo, Illinois
The stock pump puts out plenty of pressure, unless you've installed oil squirters. I've run the Hi-Volume Melling pump for many years. A high volume pump will run same pressure as stock. If you are tracking the car, and the motor starts starving for oil, for whatever reason, a HV pump recovers the pressure quicker. It pumps no more volume than stock, with stock bearing clearances. It's a myth that a Hi-Volume pump pumps the pan dry of oil. It can't pump any more volume than stock, unless you've opened up bearing clearances for racing purposes. Then you may need a larger sump capacity. A high pressure pump WILL pump more oil, because with more pressure comes more oil seeping past the same clearances.....Thanks guys for all your input.
